#3948B8#3948B8

#3948B8 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.0% C 0.176 H 271.7°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3948B8
RGB	rgb(57, 72, 184)
HSL	hsl(233, 53%, 47%)
HSV	hsv(233, 69%, 72%)
CMYK	cmyk(69%, 60.9%, 0%, 27.8%)
CIE-LAB	lab(35.92, 31.53, -61.00)
CIE-LCH	lch(35.92, 68.67, 297.34°)
OKLab	oklab(46% 0.0053 -0.1759)
OKLCH	oklch(46% 0.176 271.7)
XYZ	xyz(12.6535, 8.9641, 46.4015)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3948B8 #B8A939

analogous

#3988B8 #3948B8 #6939B8

triadic

#3948B8 #B83948 #48B839

tetradic

#3948B8 #B83988 #B8A939 #39B869

square

#3948B8 #B83988 #B8A939 #39B869

split-complementary

#3948B8 #B86939 #88B839

monochromatic

#1C235B #2B3689 #3948B8 #606DCE #8F98DC

Accessibility & contrast

On white

7.52

#3948B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3948B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3948B8

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3948B8	#FFFFFF	#000000	##FFFFFF
##3948B8	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABC

Deuteranopia (green-blind)

#004FB6

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3948b8;
/* rgb */ color: rgb(57, 72, 184);
/* oklch */ color: oklch(46.0% 0.176 271.7);

Tailwind

colors: {
  custom: {
    50: '#7f7bce',
    500: '#3948b8',
    950: '#000000',
  },
}

SCSS

$custom: #3948b8;
$custom-light: #7f7bce;
$custom-dark: #000000;

JSON

{
  "hex": "#3948b8",
  "rgb": {
    "r": 57,
    "g": 72,
    "b": 184
  },
  "hsl": {
    "h": 232.913,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.45998,
    "c": 0.176,
    "h": 271.7
  },
  "luminance": 0.08965
}

Semantic roles & 50–950 ramp

primary

#3948B8

secondary

#C7BF86

accent

#CB4CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3948B8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →